Automatic device for controlling the operation of photographic apparatus.



L. J. E. COLARDEAU & J. RICHARD. AUTOMATIC DEVICE FOR CONTROLLINGIHB OBERATION 0F PHOTOGBAPHIG APPARATUS. APPLIQATION TILED FEB. 10, 1913.

1,104,412. Patented July 21, 1911 4 SHEETS-BKEET 1..

1n: NORRIS PETERS ca., wxsmucrmv. I. c.

L. J. E. GOLARDEAU & J. RICHARD. AUTOMATIC DEVICE FOR CONTROLLING THE OPERATION OF PHOTOGRAPHIO APPARATUS.

. APPLIOATIOHIILED PBB.'10,1913. 1,104,412, Patented July 21,1914" 4 mun-inn 2.

v L. I. E. COLARDEAU & J. RICHARD.

AUTOMATIC DEVICE FOR CONTROLLING THE OPERATION OF PHOTOGRAPHIG APPARATUS.

' APPLICATION FILED FEB. 10, 1913.

1,104,412, Patented July 21, 1914 4 SHEETS-MIKE! 3.

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rm: NORRIS PETERS ca. wnsmrvorau. n. r:

L. J. E. GOLARDEAU & J. RICHARD. AUTOMATIC DEVICE FOR CONTROLLING THE OPERATION OF rno'roemrmc APPARATUS.

APPLICATION FILED FEB. 1'0, 1913. U

Patented July 21, 1914.

UNITED STATES .PATENT OFFICE.

LOUIS JOSEPH EMMANUEL COLARDEAU AND J LEs RICHARD, or PARIS, FRANCE.

AUTOMATIC DEVICE FOR CONTROLLING THE OPERATION OF PHOTOGRAPHIC Specification of Letters Patent.

APPARATUS.

Patented July 21, 1914.

Application filed February 10, 1913. Serial No. 747,513.

arin, professor at the College Rollin, and

JULEs RIoHAno, of 25 Rue Mlingue, scientific-instrument maker, both in the c ty of Paris, Republic of France, have invented an Improved Automatic Device for Control- I ling the Operation of Photographic Appa ratus, of which the following is a full, clear, and exact description. I

The present invention has for its object an automatic device applicable to photographic apparatus and permitting the operator to photograph himself or to appear in av group or landscape taken by himself.

This device permits a time-exposure as well as an instantaneous view to be taken;

it has for its result to produce successivelyz.

1. The appearanceof a signal indicating that the shutter of the photographic apparatus is about to open; 2, theopenmg of the shutter; 3, the closure of the shutter after the desired time of exposure has elapsed, which time is determined in advance; fl, the appearance of a second signal indicating that the photograph is taken. 1

The new device is characterized essen tially by .a mechanism which acts twice on the' press-button" orpresser-piece of the shutter, the first time in order to" open it, the second time in order to closeit, this second action takingplace after the desired time-'ofexposure has elapsed; this mechanism determines moreover the appearance of the second signal, indicating that the taking of the photograph is completed.

the invention is represented in the accompanying drawings, which are given by way:

of example only, wherein: Figure 1 shows in elevation the device mounted"onaphotographic camera. Fig. 2

is a' corresponding side view. Fig. 3 isa plan view partly. in section on the 'line AA,'f Fig. 1.' :Fig. 1 is a view similar to is a section-of the, apparatus taken on the line B-B of Fig-5, showing the internal mechanism in the same position as Fig 1. Figs. '9 and' 10 are two similar sections showing two positions corresponding to Fig. 6. Fig. 11 corresponds to Fig. 7.

As can be seen on these drawings, the new device comprises a frame a, on which are mounted two vanes 12 and 0, capable of turning on a pivot pin 6! and provided with springs which tend to open them in order to bring them into the positions shown in Figs. 4 and 7. These vanes are retained folded back against the frame when the apparatus is set, one by a tooth e on a lever 6 (Fig. l)

which turns about 6 and the other by a tooth f on a second lever f, or auxiliary lever, mounted on the lever This second lever is capable of turning about the axis 6 and can be held fast on the lever e by the aid of a milled head, lock-nut or button 1. The end f of the lever f'forms a pointer standing opposite a scale 6 divided into seconds on p the lever e.

The tooth 6 serves to retain the vane 6, while the tooth f serves to retain the vane c. When the lever f is moved relatively to the lever e, the angular distance apart of the two teeth 0? and f is'v'aried. Consequently the space of time which elapses between the opening of the two vanes is varied according to the desired duration of the exposure.

The lever e bears a pin 9, and the lever f p a pin it (Figs. 5 and 8), designed to effect respectively therelease of the mechanism operating the shutter in order to open and to close this shutter. By varying the relative positions of these two levers e' and f, the angular distance apart of the two pins changed and consequently the time which elapses between the instant at which the The arrangement forming the object of first determines the opening of the shutter and the instant at which the second effects "the closure thereof.

The lever e is provided with a 'detent i '(Fig. 8) in engagement with afratchet i 'actedupon by a spring i forming part of a clockwork-movement. This movement is wound up when the lever e is passed from' the position II ig. 7), to the position I '(Fig. 1), which stresses'the spring 21 A button i (Fig. 1) serves to determine The mechanism acting on the presserpiece jof the shutter comprises a button k whioh,"when the device is mounted on the its photographic apparatus, is opposite this presser-piece. This button is normally moved away from the presser-piece by a leaf spring 7J Fig. 8.

A cam Z, Fig. 8, which has two projections Z and Z and is keyed on a shaft Z is adapted to act on the end of the spring 7J In the in terior of the cam is arranged a spiral spring Z (Fig. 8), which tends to turn it in the direction indicated by the arrow 1. The cam Z is fixed to a disk 772. having two retaining notches m and m In these notches there is adapted to engage the nose of a hook n, pivoted at n and pressed against the disk by a spring n The shaft Z extends through the front plate of the frame a and on its end is keyed a crank 0, Fig. l; to the latter is pivotally attached a slide p in which there can move a button or pin 9 carried by the lever e.

The new arrangement is shown mounted on a verascope by the aid of a bayonet joint composed of a small base 1* (Fig. 1), having two holes 1' and provided with a spring a with a tooth 1*, Fig. 3. On the other hand, there is provided on the verascope a plate 8 having two hooks 8 In order to place the new device on the verascope, is is only necessary to bring the holes r on to the hooks s and then to move the device to the left; the noses of the hooks s then come opposite the imperforate parts of the base 0* and the device is locked in position. The tooth r falls behind the hook 8 as shown in Fig. 8, which prevents any accidental separation of the device from the verascope; the device can only be removed by disengaging the tooth r by hand and pushing it to the right.

The device being supposed placed on the verascope, the operation is as follows: The operator unfastens the milled head f and turns the lever f relatively to the lever e in such a manner as to bring the pointer f opposite the desired figure of the scale 6 according to the time the exposure is to last. He then tightens up the milled head in such a manner that the lever f forms part of the lever e and accompanies it in its rotary motion. He winds up the device, if it is not already wound up, by bringing the set of lever-s e and f to the position I, Fig. 1. In this position, the spring 6 of the clockwork movement is stressed. The lever e, at the end of its movement, acts by means of its button or pin 9 on the top of the slide 79 and turns the crank 0, which brings it into the position shown in Fig. 1; the cam Z takes up the position shown in Fig. 8; the spring of this cam is likewise stressed; it is retained in the set position which has just been given it by the hook it of which the nose engages in the first notch m of the disk m, Fig. 8. The operator moreover takes care to bring the button a of the verascope to the time-exposure position, and to set the shutter by turning the lever 25 to the left. These operations can also be made before the apparatus is mounted on the verascope. All is thus prepared. The operator moves the button 2' and brings it to the starting position. The clockwork movement sets itself in motion immediately. The operator then goes to the place which he is to occupy in order to be photographed. As the set of levers e and f turn in the direction :0, Fig. 1, there arrives a moment at which the tooth a leaves the vane b; the latter under the action of its spring opens immediately, moving into the position shown in Fig. 4. The interior of the vane Z) and the back of the vane 0 can be of a striking color, red for example. The appearance of these red surfaces indicates to the operator that the shutter is about to open. In fact an instant after the red signal has thus appeared, the pin 9 of the lever e which, in the rotary movement of this lever, has gradually approached a projection 92, on the hook at (Fig. 8), raises this projection and disengages the nose of the hook from the notch m The cam Z is thus released and rapidly rotates through a fraction of a revolution. It is stopped by the engagement of the notch m with the nose of the hook n. In this movement of rotation of the cam, the projection Z bears on the button is, depresses it as shown in Fig. 9, then passes the end of the leaf spring 75 allowing this spring and the button 7a to rise, thus taking up the position shown in Fig. 10. At the moment at which the button has passed the position shown in Fig. 9, the presser-piece j of the shutter has been depressed sufiiciently to determine the opening of the shutter. The shutter then remains open during the desired time of the exposure. The closure of the shutter, when the time of exposure has elapsed, is effected by the pin 72, on the lever f; this pin acts on a projection 12 on the hook n (Fig. 11) and disengages this book from the notch m The cam Z is again released and turns until the notch m engages a fixed projection a, Fig. 11, which stops it. In this movement, the projection Z depresses the button It and consequently the presser-piece y which closes the shutter. An instant after, the tooth f releases the vane c which opens, Fig. 7 its reverse side and the surface 0 form a signal indicating to the operator that the photograph is taken. If it be desired to take an instantaneous view, it is only necessary to bring the button t to the instantaneous position. The engagement of the cam Z releases the shutter. In this case, the index f is brought into its extreme position. The appearance of the second signal follows very shortly after the taking of the photograph.

The above arrangements are only given by way of example, the forms, dimensions and detail arrangements can be varied in all cases without altering the principle of the invention.

Claims:

1. In a device for automatically controlling the release of the shutters of photographic apparatus, annunciating vanes, a driving mechanism, levers actuated by said mechanism, means for adjusting the relative positions of the two levers and determining the duration of the exposure, means for allowing the levers to open the vanes, and means for allowing the levers to actuate the press-button of the shutter for opening and closing said shutter.

2. In adevice for automatically controlling the release of the shutters of photographic apparatus, annunciating vanes, a driving mechanism, two levers actuated by said mechanism, projections on said levers, cooperating with the vanes, pins on said levers, a hook, a cam, and projections on said I cam, adapted to act upon the press-button of the shutter.

3. In a device for automatically controlling the release of the shutters of photographic apparatus, annunciating vanes, a driving mechanism, levers actuated by said mechanism, means for winding up the driv ing mechanism by means 0 said levers, means for allowing the levers to open the vanes, and means for allowing the levers to actuate the press-button of the shutter for opening and closing said shutter.

4. In a device for automatically control- Coplea of thll patent may be obtained for vers, a hoo a cam, retaining notches in said cam, in which the hook engages, and two projections on the cam, for acting upon the press-button of the shutter.

5. In a device for automatically controlling the release of the shutters of photographic apparatus, annunciating vanes, a driving mechanism, two variably angularly spaced apart levers, a projection on each lever for retaining the vanes, and a pin on each lever for opening or closing the shutter.

6. In a device for automatically controlling the release of the shutters of photographic apparatus, annunciating vanes, a driving mechanism, two variably angularly spaced apart levers, a projection on each lever for retaining the vanes, a pin on each lever, a hook, a spring cam, retaining notches on said cam, cooperating with the hooks, and projections on the cam, for acting upon the press-button of the shutter.

The foregoing specification of our improved automatic device for controlling the operation of photographic apparatus signed by us this 18th day of January, 1913.

LOUIS JOSEPH EMMANUEL COLARDEAUQ JULES RICHARD. Witnesses:

HANSON C. Coxn, RENE THIRIOT.

five cents each, by addressing the Commissioner 0! Patenta, Washington, D. 0. 

